Pull-chain candelabrum socket



Dec. 8 1925' E. H. FREEMAN PULL CHAIN CANDELABRUM SOCKET Filed MaICh 25, 1922 I. ll//r/vesses." IL f Patented Dec. 8, 1.925.

UNITED STATES PATENT oFFicl-z.

EDGAR H. FREEMAN, O TREN TON NEW JERSEY, ASSIGNOR, BY MESN E ASSIGNMENTS,

TO CIRCLE F. MFG. CQ., 0F TRENTON, NEW JERSEY, A CORPORATION 0F NEW JER- SEY.

PULL-CHAIN CANDELABRUM SOCKET.

Application led March 25, 1922. Serial No. 546,757.

To all wiz-0m it may concern.'

Be it known that I, EDGAR H. Famer/TAN, a citizen of the vUnited States, residing at Trenton, in the county of Mercer and State of New Jersey, have-invented certain new and useful Improvements in Pull-Chain Candelabrum Sockets, of which the following is a specification.

This invention relates to an improvement in extensible candelabrum sockets embodyino' a pull chain switch.

xcept for the invention described in my co-pendin 'application Serial No. 540,815, led Marci 3, 1922, candelabrum sockets of the pull-chain type have been of the fixed or inextensible type, that is, the socket structure has been supported on a fixed pipe or tube making it diiiicult to meet the requirement of all installations due to the tubular candle sheath frequently projecting' above the mouth of the screw shell to such an extent that it interferes with the screwing in of the lamp against the lamp terminals. lln order to remedy such a condition it is necessary to cut or trim the candle sheath to make it short enough and this operation frequently results in the mutilating and soiling ofgthe sheath, besides requiring additional tlme and labor.

@ne of thev distinctive features of the present improvement is to provide a novel extensible pull chain candelabrum construc` tion wherein an extensible bracket connects a pair of relatively separate lamp and switch-carrying members and also constitutes means for conducting current from one of the switch contacts` to one of the lamp i terminals.

A further object of the invention/is to provide a construction wherein the` extensible support is used as a conductor for completing the circuit between the lamp and the switch, thereby permitting of the i terminals being carried by the separate and relatively adjustable members or units of the device.

A further and more specific object of the invention is to provide a simple, practical and reliable construction that may be economically manufactured and Which may be readily fitted and adjusted in proper position with a minimum expenditure of time and labor.

With the above and other objects .in view ne wire which will more readily appear as the nature of the invention vis better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed. A j

A preferred and practical embodiment of the invention is shown in the accompanying drawings, in which l Figure 1 is a vertical sectional view taken on the line 1-1 of Fig. 2 of the improved construction illustrating its application.

Figure 2 is an elevation looking atright angles to Figure 1 and `being partl in section, and omit-ting the candle sheat *Similar reference characters designate cor-A responding parts throughout the several 'gures of the drawings.

In its general organization the present device includes a lamp socket unit A and a switch carrying unit B adfustably connected by an `extensible bracket fl whereby the entire structure may be readily adjusted to suit the length of the candle sheath D.

lln connection with the lamp socket unit A, it will be observed that the same includes an insulating base 1 carrying therewith the screw shell 2 which is engaged by the ngers 3 of the line wire terminal plate t having the usual holding screw 5. The central portion of this base 1 carries a center plug contact 6 that is held in position by the screw or equivalent fastening 7 and which also serves to connect the member 8 of the bracket C with the insulating base or button 1 of the socket unit A.

The switch carrying unit B preferably includes an insulating base 9 for carryin the bracket member 10, which together wit 'the bracket member 8 secured to the top button 1 constitutes the extensible bracket C. 0b-y viously, the said extensible bracket may be of an desired and convenient formA to permit the relative longitudinal movement of the members thereof, but as shown the member A will be provided with the guide anges 8 and the slot 8" whereb the screw 8 may be' loosened to permit the shifting of the member 8 relative to the member 10 or tightened to clamp the same together as desired.

Referring now to the manner in which the vmember `10 of the bracket C connects with the insulating base 9, it will be observed that the same is held. in place by a suitable fastening 11 which also holds the spring Contact member 12 in place. This spring contact member 12 is adapted to engage and disengage the Contact member 13 due to the Inanipulation of the switch mechanism, designated generally as S, thereby to open and close the circuit. And, as will also be observed from Figure 1 for example, the said spring contact 13 is held to the insulating base 9 by means of the holding screw14 that also secures the line wire terminal 15 to the said insulating base or button 9, thereby electrically connecting the contact member 13 with one of the line wires of the circuit.

The switch mechanism S is preferably of the ratchet type supported upon a relatively horizontal axis 16 carried by the brackets 17-17 secured to the base 9 by the screws 18 or the like. The switch mechanism proper consists of a suitable insulating cam block 19 having a duplex cam periphery for alternately causing thc ends otr the contacts 12 and 13 to engage and separate when it is rotated by the ratchet device 2O which carries a -pull chain 21 or its equivalent. This pull chain 21 preferably extends downwardly through a suitable channel provided in the base 9 to a convenient point of outlet in the fixture fitting.

Also, in connection with the base 9 it will be observed that the same may be attached to the nipple portion of the ixture fitting by means of a clip 22, which Jfor example, may consist of a clamping collar 28 and the upwardly extending arms or straps 24 held to the insulating member 9 by the screws 18 which also serve to unite the switch frame member 17 thereof.

From the foregoing it will be apparent that the present construction provides a socket unit A including the lamp terminals consisting of the screw shell 2V and center plug contact 6, the said screw shell being in electrical contact with the line wire terminal 4 while the center plug contact is engaged by the screw 7. This screw electrically connects the contact 6 with the extensible supporting bracket C consisting of the slidably interlocked members 8 and 10, the latter being electrically connected with the spring contact member 12 of the switch unit while the other spring contact 13 is electrically connected by the screw 14 with the line wire terminal 15.

When the device is installed on the fixture fitting by attaching the clip 22 to the nipple portion thereof, it will be obvious that the socket member may be adjusted to any desired height with reference to the switch carrying member B so as to meet the height ot the candle sheath D. When the device is thus set in its adjusted position the line wires may be res ectively connected to the terminals 4 an 15 and the circuit through the lamp inserted in the screw shell 2 will be closed or opened according to whether the members 12 and 13 are in or out of engagement. When the contacts 12 and 13 are pressed into engagement by the cam of the switch the circuit will be completed, for example, from the line wire terminal 4 through the screw shell contact 2 to the iilame'nt of the lamp, and thence through the iilament to the center plug contact 6 which is electrically connected with the extensible bracket C. As the member 10 of the bracket C is electrically connected with the contact meniber 12, and said member 12 is pressed into engagement with the contact member 13 by the cam block of the switch S the current will pass on to the line wire terminal 15 through the screw 14 which conncctsthe contact member with the line wire terminal.

Without further description it is thought that the features and advantages of the 1mprovement will be readily apparent to those skilled in the art and it will of course be understood that changes in the form, proportion and minor details of construction may be resorted to without'departing from the spirit of the invention or scope of the appended claims.

I claim:

1. A candelabrum socket including a pair of insulation blocks, a bracket including two members slidable one upon the other adjustably connecting the blocks, a lamp socket carried by one of said blocks and a switch carried by the other.

2. A candelabrum socket including a pair of insulation blocks, a current carrying bracket including two members slidable one upon the other adjustably connecting the blocks, lamp terminals on one of said blocks one of which is electrically connected with the bracket, and a switch mechanism carried by the other block and electrically connected with said bracket.

3. A candelabrum socket including a pair of insulation blocks, a current carrying bracket including two members slidable one upon the other adjustably connecting the blocks, lamp terminals carried by one of said blocks and one of the same being electrically connected with said bracket, a switch mechanism carried by the other block and electrically connected with said bracket, and a line wire binding terminal carried by each insulation block.

4. A pull-chain candelabrum socket including a lampcarrying insulation block having lamp terminals, another insulation block, a ratchet-type switch carried by said last named block, means included in the electrical circuit between the switch and one of the lamp terminals for adjustably connecting said blocks, and a line-wire binding terminal carried by each block.

. 5. A pull-chain type candelabrum socket including a lamp carrying unit comprising connected with one-ot Said switch contacts and also electrically connected with one of the lamp terminals.

6. A pull chain candelabrum socket including a lamp carrying unit having' a line wire terminal and lamp terminals, a switch carrying unit comprising an insulating base, spring contacts carried by the base, a pull chain switch mechanism for alternately causing said contacts to engage and separate, a line wire terminal connected with one of said spring contacts, and a bracket for eX- tensibly connecting said lamp and switch carrying units, said bracket being electrically connected with one of the lamp terminals and also electrically connected with one of the spring contacts.

7. A pull-chain candelabrum socket including a lower insulation block adapted to be attached to a fixture litting, a line wir binding terminal carried by said insulatioi. block, a ratchet-type switch mechanism also carried by said block, an upper insulation block, a line wire binding terminal thereon, lamp terminals also on the upper block, and an adjustable current carrying bracket connecting said upper and lower portions.

8. A pull chain candelabrum socket, including in combination, a candle sheath, a relatively stationary switch carrying member arranged within the sheath and a relatively adj nstable lamp carrying member also arranged within the sheath, and a combined conductor and extensible support for permitting the lamp carrying member to be adjusted with reference to the mouth of the candle sheath independently of the switch mechanism.

*In testimony whereof I hereunto aiiix my signature. I

EDGAR H. FREEMAN. 

